This is a wonderful bit of technical work. It's a pretty traditional virtual pet game but the effort you put into the AI and procedural animation is clear.
Like you mentioned on the game page, there isn't too much to do right now. I think this works great as a little tech demo or prototype for the base of a larger game but as it stands it doesn't have too much that is particularly stand out. The fact that you were able to make what you did in a week is very impressive but some times it's important to think about what is going to be the most interesting result instead of the most technically realized result.
That's not to say this isn't a good project or that you should've worked on something else but I do think you should think about what's going to be a little out of the box. Just a single unique feature would go a long way to really ingrain this in my mind.